Connector::initConnectorHandler

static function initConnectorHandler(string $connectorId = ''): ConnectorsBase
{
	if (
		!isset(self::$connectors[$connectorId])
		|| !(self::$connectors[$connectorId] instanceof ConnectorsBase)
	)
	{
		$class = self::getConnectorHandlerClass($connectorId);
		self::$connectors[$connectorId] = new $class($connectorId);
	}

	return self::$connectors[$connectorId];
}